run-through vs test flight

run-through

noun
  • A rehearsal of a drama, especially an uninterrupted one, but with no makeup or costume. 

  • A brief outline of the main points of something; a rundown. 

adj
  • In which trains continue without stopping while going through a station. 

test flight

noun
  • a proving flight; usually of a prototype of a new aircraft design before it goes into production. 

How often have the words run-through and test flight occurred in a corpus of books? (source: Google Ngram Viewer )